Diff lockers?

I am wanting to put a set of differential lockers on my 99 ram 1500. All I can find in electric lockers are for the front. Can anyone give me some opinions on what kind to get? It is a daily driver so I don't want to put Detroit lockers on. I live in Montana and drive on alot of icy roads and constant posi can be pretty hairy on ice, so I want to be able to disengage them. Thanks

air lockers are availble for all diff's but are expensive. try auburn diff's. they have a clutch engaugement instead of a gear like the detroit's. that way their only there when you need them, not all the time.